Workshop Discussion: Ensuring Safety Compliance for Electric Vehicle Onboard Chargers
In the rapidly evolving world of electric vehicles (EVs), ensuring the safety and reliability of charging systems is paramount. At the upcoming September Virtual Conference on EV Engineering, TDK will present its portfolio of circuit protection components designed to meet the evolving safety and performance demands of onboard chargers and vehicle charging systems.
The conference, hosted by TTI and TDK, spans four days from September 15-18, 2025, and offers a wide range of sessions covering various aspects of EV engineering. Among these sessions is a webinar on advanced on-board charging systems for electric vehicles, scheduled for September 17, 2025, at 9:30 am EDT.
This webinar will delve into practical insights into protecting sensitive electronics in next-generation EV platforms. TDK's key components for circuit protection in these systems include PTC inrush current limiters (ICLs), surge arresters (GDTs), leaded disc varistors, multilayer chip varistors, NTC and PTC thermistors, and high-voltage DC contactors.
- Inrush Current Management: PTC ICLs limit initial surge currents when the charger is first connected, protecting sensitive electronics from damage by gradually increasing resistance as current rises.
- Short Circuit Current Protection: High-voltage DC contactors like the HVC50 provide reliable, rapid disconnect of battery packs at voltages up to 1500 V and currents up to 750 A continuous (1,000 A surge), enabling safe interruption of short circuit currents within milliseconds.
- Transient Overvoltage Mitigation: Surge arresters such as GDTs, leaded disc varistors, and multilayer chip varistors protect against voltage spikes caused by transients, diverting excessive voltage to ground and safeguarding sensitive circuitry.
- Temperature Regulation: NTC and PTC thermistors help monitor and regulate temperature within the charger, preventing overheating and allowing for thermal management optimized for compact and efficient EV designs.
Together, these protection solutions ensure compliance with automotive safety standards and support compact, reliable designs in next-generation EV on-board chargers. They also contribute to managing system reliability and safety under the demanding electrical conditions of fast charging and high-voltage battery systems.
The webinar is ideal for design engineers and system architects interested in learning more about these advanced solutions. The conference schedule, including the session list, can be found online. Register now to join this free event and be part of the future of EV engineering.
- The webinar on advanced on-board charging systems for electric vehicles, scheduled for September 17, 2025, will focus on practical insights into managing inrush currents, mitigating transient overvoltages, and regulating temperature with electric vehicles, utilizing technology like PTC inrush current limiters, surge arresters, thermistors, and high-voltage DC contactors.
- At the upcoming September Virtual Conference on EV Engineering, TTI and TDK will discuss the significance of these technologies in ensuring the safety and reliability of electric vehicles, emphasizing their role in supporting compact, reliable designs, and enabling compliance with automotive safety standards for next-generation electric vehicles and their on-board chargers.
